title: Extra-adrenal retroperitoneal paraganglioma in a dog.
abstract: An extra-adrenal retroperitoneal paraganglioma was observed in a 10.5-year-old male Boxer dog. Additionally, the dog had an aortic base tumor, multiple thyroid adenomas, multiple testicular interstitial cell tumors, bilateral nodular adrenal cortical hyperplasia, and parathyroid gland hyperplasia. The hypothesis that the retroperitoneal mass represents a primary extra-adrenal paraganglioma rather than metastatic mass from the aortic body tumor is considered. Either primary or metastatic extra-adrenal retroperitoneal paragangliomas are rarely reported in dogs.
authors.affiliation: 1Marcia R. S. Ilha, Tifton Veterinary Diagnostic and Investigational Laboratory, University of Georgia, 43 Brighton Road, Tifton, GA 31793. milha@uga.edu.
authors.forename: Marcia R S
authors.initials: MR
authors.lastname: Ilha
authors.forename: Eloise L
authors.initials: EL
authors.lastname: Styer
mesh_terms: D000818:Animals; D004283:Dog Diseases / Q000473:pathology*; D004285:Dogs; D017809:Fatal Outcome; D006338:Heart Neoplasms / Q000150:complications / Q000473:pathology / Q000648:ultrastructure / Q000662:veterinary*; D007150:Immunohistochemistry / Q000662:veterinary; D008297:Male; D008854:Microscopy, Electron / Q000662:veterinary; D010236:Paraganglioma, Extra-Adrenal / Q000150:complications / Q000473:pathology / Q000648:ultrastructure / Q000662:veterinary*; D012186:Retroperitoneal Neoplasms / Q000150:complications / Q000473:pathology / Q000648:ultrastructure / Q000662:veterinary*; D013736:Testicular Neoplasms / Q000150:complications / Q000473:pathology / Q000662:veterinary*; D013964:Thyroid Neoplasms / Q000150:complications / Q000473:pathology / Q000662:veterinary*
keywords: Aortic body tumor; chemodectoma; dogs; extra-adrenal; paraganglioma; retroperitoneal